Abstract
Molar excess volumes, \({V^{\rm E}_{ijk}}\), and speeds of sound, u ijk , of 2-pyrrolidinone (2-Py) (i) + toluene (j) + o-xylene or p-xylene (k) ternary mixtures have been determined by using a dilatometer and interferometer as a function of composition at 308.15 K. The speeds of sound of ternary mixtures have been utilized to predict their excess isentropic compressibilities. The Redlich-Kister equation has been fitted to the molar excess volumes, \({V^{\rm E}_{ijk}}\), and excess isentropic compressibilities, \({\left( {\kappa _S^{\rm E}}\right)_{ijk}}\), to predict ternary adjustable parameters and standard deviations. The observed data have been analyzed in terms of the Flory theory and the Sanchez and Lacombe theory.
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Yadav, J.S., Sharma, D. & Sharma, V.K. Thermodynamic Properties of Ternary Liquid Mixtures of 2-Pyrrolidinone with Aromatic Hydrocarbons. Int J Thermophys 31, 327–337 (2010). https://doi.org/10.1007/s10765-010-0717-9
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DOI: https://doi.org/10.1007/s10765-010-0717-9